Polysaccharides and related high molecular weight glycans are hugely diverse with wide application in Biotechnology and great opportunities for further exploitation. An Introduction to Polysaccharide Biotechnology ¿ a second edition of the popular original text by Tombs and Harding ¿ introduces students, researchers, clinicians and industrialists to the properties of some of the key materials involved, how these are applied, some of the economic factors concerning their production and how they are characterized for regulatory purposes.